Systems and method of power control for uplink transmissions

ABSTRACT

Methods are disclosed that enable a user equipment (UE) to receive cell specific, UE specific and, in some embodiments, Physical Uplink Shared Channel (PUSCH) specific parameters from a network side component, such as a transmit/receive point, and use that information to set at least one PUSCH transmit power when transmitting to the network side.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of PCT Application No.PCT/CN2018/080134, entitled “System and Method of Power Control forUplink Transmissions,” filed Mar. 23, 2018, which claims the benefit ofU.S. Provisional Application No. 62/476,707, entitled “System and Methodof Power Control for Uplink Transmissions,” filed on Mar. 24, 2017,which applications are hereby incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates generally to a system and method ofwireless communications, and, in particular embodiments, to a system andmethod of power control for uplink transmissions.

BACKGROUND

Unlike LTE networks where each cell is serviced by one transmit/receivepoint (TRP) with a unique cell ID, in a New Radio (NR) system each NRcell may include multiple TRPs using the same NR cell ID, where the NRcell may cover a much broader area. Such NR systems may support grantfree transmissions and multi-beam communications. Grant free physicaluplink shared channel (PUSCH) transmissions can include PUSCH withoutgrant scheduling but with radio resource control (RRC) connection (e.g.RRC connective state) or can include PUSCH without grant scheduling andwithout RRC connection (e.g. IDLE state or RRC_INACTIVE state). Giventhe different ways in which such NR systems operate there is a need forimproved uplink power control schemes for use in such systems.

SUMMARY

According to a first aspect of the disclosure, there is provided amethod involving: determining a first transmission power fortransmitting a first physical uplink shared channel; transmitting thefirst physical uplink shared channel at the first transmission power ona first spatial resource; determining a second transmission power fortransmitting a second physical uplink shared channel; and transmittingthe second physical uplink shared channel at the second transmissionpower on a second spatial resource that is different from the firstspatial resource; wherein the first transmission power is different fromthe second transmission power; and wherein the first spatial resourceand the second spatial resource are identified with different resourceindices.

In some embodiments, the first spatial resource and the second spatialresource are at least one of: respective transmission beams; respectivetransmission beam pair links; respective panels; respective QCL groups;respective antenna ports; or respective transmission layers.

In some embodiments, at least one of: the first transmission power isderived from power parameters specific to the first physical uplinkchannel; and the second transmission power is derived from powerparameters specific to the second physical uplink channel.

In some embodiments, the power parameters specific to the first physicaluplink channel and the power parameters specific to the second physicaluplink channel include one or more of a respective PUSCH specificpathloss parameter, a respective PUSCH specific P_(o_UE_PUSCH)parameter, or one or more respective PUSCH specific closed-loop factors.

In some embodiments, the one or more respective PUSCH specificclosed-loop factors is based on one or more of transmit power control ortransmission format indications.

In some embodiments, the respective PUSCH specific pathloss parameter isspecific in a downlink reference signal (DL RS) configuration.

In some embodiments, the first transmission power and the secondtransmission power are further derived from common cell specific powerparameters.

In some embodiments, the common cell specific power parameters includeP_(o_PUSCH_nominal).

In some embodiments, the power parameters specific to the first physicaluplink channel and the power parameters specific to the second physicaluplink channel are represented as offsets from common cell specificpower parameters or UE specific power parameters.

In some embodiments, the method further involves receiving at least oneof: one or more cell specific power parameters; one or more UE specificpower parameters; one or more power parameters specific to the firstphysical uplink shared channel; and one or more power parametersspecific to the second physical uplink shared channel.

According to a second aspect of the disclosure, there is provided a userequipment (UE) including a processor and a computer-readable medium,having stored thereon computer-executable instructions. Thecomputer-executable instructions, when executed by the processor, causethe UE to: determine a first transmission power for transmitting a firstphysical uplink shared channel; transmit the first physical uplinkshared channel at the first transmission power on a first spatialresource; determine a second transmission power for transmitting asecond physical uplink shared channel; and transmit the second physicaluplink shared channel at the second transmission power on a secondspatial resource that is different from the first resource; wherein thefirst transmission power is different from the second transmissionpower.

In some embodiments, the first spatial resource and the second spatialresource are at least one of: respective transmission beams; respectivetransmission beam pair links; respective panels; respective QCL groups;respective antenna ports; or respective transmission layers.

In some embodiments, at least one of: the first transmission power isderived from power parameters specific to the first physical uplinkchannel; and the second transmission power is derived from powerparameters specific to the second physical uplink channel.

In some embodiments, the power parameters specific to the first physicaluplink channel and the power parameters specific to the second physicaluplink channel include one or more of a respective PUSCH specificpathloss parameter, a respective PUSCH specific P_(o_UE_PUSCH)parameter, or one or more respective PUSCH specific closed-loop factors.

In some embodiments, the respective PUSCH specific pathloss parameter isspecific in a downlink reference signal (DL RS) configuration.

According to a third aspect of the disclosure, there is provided amethod involving: receiving a first physical uplink shared channel on afirst spatial resource provisioned using one or more physical uplinkshared channel power parameters specific to the first physical uplinkshared channel; and receiving a second physical uplink shared channel ona second spatial resource provisioned using one or more physical uplinkshared channel power parameters specific to the second physical uplinkshared channel.

In some embodiments, the first spatial resource and the second spatialresource are at least one of: respective transmission beams; respectivetransmission beam pair links; respective panels; respective QCL groups;respective antenna ports; or respective transmission layers.

In some embodiments, the method further involves transmitting at leastone of: one or more cell specific power parameters; one or more UEspecific power parameters; one or more power parameters specific to afirst physical uplink shared channel; and one or more power parametersspecific to a second physical uplink shared channel.

In some embodiments, the one or more physical uplink shared powerparameters specific to the first physical uplink channel and the one ormore physical uplink shared power parameters specific to the secondphysical uplink channel include one or more of a respective PUSCHspecific pathloss parameter, a respective PUSCH specific P_(o_UE_PUSCH)parameter, or one or more respective PUSCH specific closed-loop factors.

In some embodiments, the one or more respective PUSCH specific pathlossparameter is specific in a downlink reference signal (DL RS)configuration.

In some embodiments, the one or more respective PUSCH closed-loopfactors can be based on one or more of transmit power control ortransmission format indications.

In some embodiments, the one or more physical uplink shared channelpower parameters are further derived from common cell specific powerparameters.

In some embodiments, the common cell specific power parameters includeP_(o_PUSCH_nominal).

In some embodiments, the one or more physical uplink shared powerparameters specific to the first physical uplink channel and the one ormore physical uplink shared power parameters specific to the secondphysical uplink channel are represented as offsets from the one or morecell specific power parameters or the one or more UE specific powerparameters.

According to a fourth aspect of the disclosure, there is provided adevice including a processor and a computer-readable medium, havingstored thereon computer-executable instructions. The computer-executableinstructions, when executed by the processor, cause the device to:receive a first physical uplink shared channel on a first spatialresource provisioned using one or more physical uplink shared channelpower parameters specific to the first physical uplink shared channel;and receive a second physical uplink shared channel on a second spatialresource provisioned using one or more physical uplink shared channelpower parameters specific to the second physical uplink shared channel.

In some embodiments, the first spatial resource and the second spatialresource are at least one of: respective transmission beams; respectivetransmission beam pair links; respective panels; respective QCL groups;respective antenna ports; or respective transmission layers.

In some embodiments, the device further includes computer-executableinstructions, that when executed by the processor, cause the device totransmit at least one of: one or more cell specific power parameters;one or more UE specific power parameters; one or more power parametersspecific to a first physical uplink shared channel; and one or morepower parameters specific to a second physical uplink shared channel.

In some embodiments, the one or more physical uplink shared powerparameters specific to the first physical uplink channel and the one ormore physical uplink shared power parameters specific to the secondphysical uplink channel include one or more of a respective PUSCHspecific pathloss parameter, a respective PUSCH specific P_(o_UE_PUSCH)parameter, or one or more respective PUSCH specific closed-loop factors.

In some embodiments, the one or more respective PUSCH specific pathlossparameter is specific in a downlink reference signal (DL RS)configuration.

In some embodiments, the one or more respective PUSCH closed-loopfactors can be based on one or more of transmit power control ortransmission format indications.

In some embodiments, the one or more physical uplink shared channelpower parameters are further derived from common cell specific powerparameters.

In some embodiments, the common cell specific power parameters includeP_(o_PUSCH_nominal).

In some embodiments, the one or more physical uplink shared powerparameters specific to the first physical uplink channel and the one ormore physical uplink shared power parameters specific to the secondphysical uplink channel are represented as offsets from the one or morecell specific power parameters or the one or more UE specific powerparameters.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates UL power control in LTE.

FIG. 2 illustrates an embodiment of a NR system in accordance with thepresent disclosure.

FIG. 3 illustrates another embodiment of a NR system in accordance withthe present disclosure.

FIG. 4 illustrates another embodiment of a NR system in accordance withthe present disclosure.

FIG. 5 illustrates another embodiment of a NR system in accordance withthe present disclosure.

FIG. 6 illustrates an embodiment of UL power control in accordance withthe present disclosure.

FIG. 7A illustrates another embodiment of UL power control in accordancewith the present disclosure.

FIG. 7B illustrates another embodiment of UL power control in accordancewith the present disclosure.

FIG. 7C illustrates another embodiment of UL power control in accordancewith the present disclosure.

FIG. 8 illustrates another embodiment of UL power control in accordancewith the present disclosure.

FIG. 9 illustrates another embodiment of UL power control in accordancewith the present disclosure.

FIG. 10 illustrates another embodiment of UL power control in accordancewith the present disclosure.

FIGS. 11A and 11B illustrate examples of network side and UE sidetransmission and receiving for multiple beam communication.

FIG. 12 illustrates a block diagram representation of a NRtransmit/receive point in accordance with the present disclosure.

FIG. 13 illustrates a block diagram representation of a NR UE inaccordance with the present disclosure.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

FIG. 1 illustrates a signal flow diagram in which a transmit/receivepoint (TRP) 10 is in communication with a UE 20. The TRP 10 sends 12 amessage to the UE 20 that includes cell specific parameters. Thismessage may be sent on a cell specific broadcast channel (BCH). The TRP10 also sends 14 a message to the UE 20 that includes UE specificparameters. This message may be sent using a radio resource control(RRC) message. The UE 20 can then send 16 physical uplink shared channel(PUSCH) and demodulation reference signal (DMRS) information to the TRP10. There are three types of PUSCH that may be transmitted by the UE. Afirst PUSCH type is scheduled with a dynamic grant (GRANT). A secondPUSCH type is semi-persistently scheduled with a dynamic grant (SPS). Athird PUSCH type is a random access response grant (MSG3).

As shown in FIG. 1, in LTE, the transmission power for PUSCH can bederived as min{P_(c,max)(i), P_(PUSCH)(i)} by the UE following theequationP _(PUSCH)(i)=10 log₁₀(M _(PUSCH))+P _(O_PUSCH) +α·PL+Δ _(TF)(i)+f(i)wherein the P_(O_PUSCH) may be different for each of the three PUSCHtypes and the variable i is for a respective PUSCH transmission periodand P_(c,max)(i) is one UE-specific maximum transmission power which canbe used for one UL transmission during subframe i. M_(PUSCH) is thebandwidth of the PUSCH resource assignment expressed in number ofresource blocks. PL is the downlink path loss estimate calculated in theUE. α is compensation factor for pathloss. Δ_(TF)(i) is adjusted basedon dynamic assignment parameters related to MCS. f(i) is a TPC commandwithin the dynamic assignment to adjust the power offset.

For the first PUSCH type, which is scheduled with dynamic DL assignmentor grant, P_(O_PUSCH) can be defined as a PUSCH initial target powercomposed of the sum of a cell specific component P_(O_NOMINAL_PUSCH)provided from a broadcasting channel (e.g. system information block) anda UE specific component P_(O_UE_PUSCH) provided by a dedicated channel(e.g. RRC), which can be expressed in the formP _(O_PUSCH)(1)=P _(O_NOMINAL_PUSCH) +P _(O_UE_PUSCH)

For the second PUSCH type, which is semi-persistently scheduled withoutdynamic DL assignment or grant, P_(O_PUSCH) can be defined as a PUSCHinitial target power composed of the sum of two UE specificP_(O_NOMINAL_PUSCH_SPS) and P_(O_UE_PUSCH_SPS) if provided by thededicated channel (e.g. RRC). Otherwise, P_(O_PUSCH) can be defined as aPUSCH initial target power composed of the sum of a cell specificcomponent P_(O_NOMINAL_PUSCH) that is provided from broadcasting channel(e.g. system information block) and a UE specific componentP_(O_UE_PUSCH) provided by the dedicated channel (e.g. RRC), which canbe expressed in the forms:P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH_SPS) +P _(O_UE_PUSCH_SPS) orP _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH) +P _(O_UE_PUSCH)

For the third PUSCH (Msg3) type which is corresponding to a randomaccess response grant, P_(O_PUSCH) can be defined as a PUSCH initialtarget power composed of the sum of P_(O_PRE) which is the preambleinitial received target power and Δ_(PREAMBLE_Msg3) which is the Msg3power offset over the preamble target power, which is expressed in theform of P_(O_PUSCH)(3)=P_(O_PRE)+Δ_(PREAMBLE_Msg3). Both P_(O_PRE) andΔ_(PREAMBLE_Msg3) are provided from broadcasting channel (e.g. systeminformation block).

The random access response grant may include transmit power control TPCcommands, wherein each TPC corresponds to a particular power value.Table 1 below illustrates an example set of TPC commands and associatedpower values.

TABLE 1 TPC Commands TPC Command Value (dB) 0 −6 1 −4 2 −2 3 0 4 2 5 4 66 7 8

Overall, PUSCH initial target power P_(O_PUSCH), PL, and α are open-loopparts for UL power control which can be semi-statically configured,while Δ_(TF)(i) and f(i) are closed loop parts which are updated basedon dynamic assignment.

In LTE, a demodulation reference signal (DMRS) sent using a PUSCH hasthe same transmission power as the PUSCH itself.

FIG. 2 illustrates an example NR cell communication system 100 fromwhich NR cells may be generated. Generally, the system 100 enablesmultiple wireless devices to transmit and receive data and othercontent. The system 100 may implement one or more channel accessmethods, such as code division multiple access (CDMA), time divisionmultiple access (TDMA), frequency division multiple access (FDMA),orthogonal FDMA (OFDMA), or single-carrier FDMA (SC-FDMA). Although FIG.2 illustrates one example architecture for supporting NR cells,embodiments of the invention are not limited to this architecture. Thatis to say, other network architectures for supporting NR cells are alsopossible. For example, any network architecture where transmit/receivepoints in the network are controlled by one or more central access unitswith centralized signal processing capability can also work.

In the example of FIG. 2, NR cell communication system 100 includes userequipment (UE) 110 a-110 c, transmit/receive points, includingtransmit/receive points 130 a and 130 b, central access units 170 a and170 b, a core network 132, a public switched telephone network (PSTN)140, the Internet 150, and other networks 160. Note, however, that thisis just an example and the NR system could have more or lesstransmit/receive points and/or central access units.

The UEs 110 a-110 c are configured to operate and/or communicate in thesystem 100. For example, the UEs 110 a-110 c are configured to transmitand/or receive wireless signals. Each UE 110 a-110 c represents anysuitable end user device and which may also be referred to as user awireless transmit/receive unit (WTRU), mobile station, fixed or mobilesubscriber unit and may include a cellular telephone, personal digitalassistant (PDA), smartphone, laptop or tablet for example.

Transmit/receive points, including transmit/receive points 130 a 130 b,can include, for example, mobile-relay stations, base stations, picotransmitters, or femto transmitters. The transmit/receive points canalso be remote radio heads (RRHs) in some implementations. A RRHcontains radio frequency circuitry plusanalog-to-digital/digital-to-analog converters and up/down converters.The RRHs are located between a base station and the UEs, and areconnected to a base station using optical fiber, a wireless channel orany other communication line. The RRHs receive and convert digitalsignals to analog, then amplify the power and send the radio frequencysignals. The base stations can include a base transceiver station (BTS),a Node-B (NodeB), an evolved NodeB (eNodeB), a Home NodeB, a HomeeNodeB, an access point (AP), or a wireless router.

In one arrangement, central access unit 170 a can control a first groupof transmit/receive points including transmit/receive point 130 a whilecentral access unit 170 b can control a second group of transmit/receivepoints including transmit/receive point 130 b. For example, a centralaccess unit could be a gNodeB. Note, while central access units 170 aand 170 b are shown separate from their respective transmit/receivepoints, the central access units could alternatively be co-located withone or more of their respective transmit/receive points and thetransmit/receive points could communicate with each other (e.g. a gNodeBcould be collocated with one or more transmit/receive points andcommunicate with other transmit/receive points through an X2 interface).If not collocated, a central access unit could communicate with otherTRP's via an optical, wireless or other connection. Central access units170 a and 170 b could also communicate directly without use of corenetwork 132.

All or a subset of transmit/receive points associated with centralaccess units 170 a may be assigned a common NR cell ID to form a NRcell. Similarly, all or a subset of transmit/receive points associatedwith central access unit 170 b may be assigned a different common NRcell ID to form another NR cell. Alternatively, all or a subset oftransmit/receive points associated with central access units 170 a and170 b could be assigned a common NR cell ID. The transmit/receive pointsassociated with central access unit 170 a, 170 b, and/or 170 a and 170 btogether could also support multiple NR cells by using different subsetsof transmit/receive points.

FIG. 3 presents a diagram illustrating an NR cell in a NR system. A NRcluster 202 includes a number of individual cells (i.e. coverage area ofa transmit/receive point), such as cell 204. To create a NR cell, thesystem (via one or more central access units) assigns a common cell IDto all the cells (transmit/receive points) of the NR cluster that willform the NR cell. The system may create multiple NR cells within a NRcluster. Each NR cell has a unique NR cell ID that is common to andshared by all transmit/receive points associated with the respective NRcell.

FIG. 3 also illustrates exemplary optimal transmit/receive points forfacilitating NR data channels and NR control channels for UE 206. Forexample, locations 208, 210, and 212 of three transmit/receive pointsare optimally situated to communicate the NR channels with UE 206. Thetransmit/receive points form a virtual transmit/receive point. Thesystem can dynamically combine multiple physical transmitters andreceivers to form a virtual transmit/receive point. From the perspectiveof a UE, the virtual transmit/receive point appears to be a singletransmitter. In fact, a UE does not need to know with whichtransmit/receive point or set of points the UE is communicating with.The transmit/receive points used on the uplink may also differ fromthose used on the downlink. The system may create many virtualtransmit/receive points for a NR cell and coordinate theirtransmissions. The system can also dynamically change the physicaltransmit/receive points that make up the NR cell.

FIG. 4 presents a diagram of an example NR cell facilitating multiple NRchannels. The system can support multiple parallel NR channels within asingle NR cell, each serving a different UE. The NR cell may alsoutilize multiple different physical transmit/receive points orcombinations of transmit/receive points to create the NR data channels.The actual physical transmit/receive points of the NR data channels arealso UE-specific and are transparent to each UE. As the UEs move todifferent locations, the system can dynamically assign differentphysical transmit/receive points to service the UEs. Once again, the NRcell ID transmitted from the different physical transmit/receive pointsbelonging to the same NR cell remains the same. As illustrated in FIG.4, an example NR cell 300 is shown supporting three NR channels, one foreach UE. Three transmit/receive points 302, 304, 306 provide a NR datachannel for UE 307, two transmit/receive points 302, 304 provide a NRdata channel for UE 309, and two transmit/receive points 308, 310provide a NR data channel for UE 311. Transmit/receive points 312, 314are silent and may be turned off to save energy. In one arrangement, acentral access unit can control the generation of the NR channels basedon load balancing and UE distribution within a NR cell.

Set out below are examples of UL power control schemes that can be usedfor PUSCH transmissions in conjunction with one or more of dynamicdownlink grant scheduling, semi-persistent scheduling, random accessresponses and grant free communications. The benefits may include one ormore of:

-   -   Having more granular uplink power settings    -   Having different power setting options for sending PUSCH        transmissions in different circumstances    -   Having separate power settings for a DMRS transmission and a        PUSCH transmission (e.g. in a grant free mode)    -   Having a different PUSCH power setting with different grant        types (e.g. in a grant free and dynamic grant-based mode)    -   Having PUSCH-specific power settings, where multiple PUSCH        transmissions are sent on different spatial resources    -   Having different power settings in cases where there is beam        reciprocity or not at a UE side and/or network side

FIG. 5 presents a diagram illustrating a downlink (DL) control channeldesign which may be used in an NR system together with an example groupof cells and two UEs 406,408 being served within the cells. As showntherein, each of UEs 406, 408 is served by a subset of transmit/receivepoints surrounding the respective UEs. The transmit/receive pointstransmit the UE-specific NR dedicated control channels 410, 412. Alsoshown is common control channel 402. NR dedicated control channel 410 isspecific to UE 406, and NR dedicated control channel 412 is specific toUE 408. One or more transmission schemes of the NR data channel and/orthe NR dedicated control channel, including scrambling, pilot design,and/or pilot sequence and location, are created in accordance with a UEID. Further, a NR cell ID can be applied together with the UE ID todifferentiate transmission of the NR data channel and/or NR controlchannel from different NR cells. Parallel NR dedicated control channelscan be provided in each NR cell. The demodulation of each NR dedicatedcontrol channel is performed in accordance with a UE-specific referencesignal (RS), the sequence and location of which are linked to the UE ID.To distinguish the NR dedicated control channels communicated fromdifferent NR cells, the sequence of UE-specific RS is covered by asequence specific to each NR cell. The system may apply transmit/receivepoint selection techniques and transmit power control techniques tominimize intra-NR cell interference and inter-NR cell interference. Fora UE with a poor Signal to Interference plus Noise Ratio (SINR), thesystem can transmit the NR dedicated control channel and/or NR datachannel from multiple transmit/receive points to improve signal quality,including using MIMO processing. In addition, the system may applyTransmit Time Interval (TTI) bundling to a fixed or slow moving UE inorder to further enhance the capacity of the UE-specific virtualdedicated control channel.

NR systems may support communications on multiple beams and may supportbeam specific power control; however, it remains unclear how future NRsystems will handle layer power control, layer-group power control,panel specific power control, beam group specific power control and beampair link specific power control and how to apply open loop only, closedloop only, or both open loop and closed loop power control.

For NR-PUSCH at least targeting enhanced Mobile Broadband (eMBB),open-loop power control based on a pathloss estimate may be supported.Pathloss may be estimated using DL RS for measurement. Fractional powercontrol may also be supported, in which case, the power control methodshould know the DL RS(s) used for measurement (e.g. there may bemultiple beamformed DL RSs). Closed-loop power control may also besupported, which is based on network signaling. Dynamic UL-poweradjustment is also possible. Other implementation options for uplinkpower control include: beam specific power parameters with specificspatial resources; power control for other RSs and physical channels;power control for grant free PUSCH if supported and pathloss estimation.

For an UL transmission scheme without grant and RRC connection, at leasta system information block may be used to support power control. Onconsidering the impact of MCS on power control, the multiplexingstructure between data and DMRS may impact the MCS/TBS. Moreover,grant-free PUSCH may have different multiplexing structure fromgrant-based PUSCH. The difference in the multiplexing structure betweengrant-free and grant based my impact the MCS and TBS.

FIGS. 6-10 illustrate signal flow diagrams in which a transmit/receivepoint is in communication with a UE for various embodiments of thedisclosure.

In one embodiment, as will be explained in the context of FIG. 6, the NRsystem of FIGS. 2-5 can be used to facilitate separate power control fora PUSCH and an associated DMRS. FIG. 6 illustrates a signal flowdiagrams in which a transmit/receive point 610 is in communication witha UE 620. In an optional mode of operation, such separate power controlcan be used for grant free transmissions wherein the DMRS can be usedfor identifying a PUSCH transmission in addition to the channelestimation. In such cases a higher power level for DMRS than for PUSCHmay be required or beneficial. Also, optionally, a new DMRS structure(e.g. FDM) which may occupy a different number of resource elements thana PUSCH within the same frequency unit (e.g. PRB) and one OFDM symbol,can be used. And in such cases the transmission power for DMRS can againbe different from the transmission power for PUSCH. Specifically, asshown in FIG. 6, one or more transmit/receive points (only one 610 isshown) may transmit 614 one or more cell specific power parameters (e.g.via a Broadcast Channel which can include a physical broadcast channel(PBCH), physical hybrid-ARQ indicator channel (PHICH), physical controlformat indicator channel (PCFICH), physical downlink control channel(PDCCH) with common search space, physical downlink shared channel(PDSCH) with system information radio network temporary identifier(SI-RNTI), Paging RNTI (P-RNTI), etc.), and transmit 614 UE specificpower parameters (e.g. via a RRC), that are received by a UE 620. Thecell specific power parameters, for example, may include a first cellspecific initial target PUSCH power (e.g. _(Po_PUSCH_nominal)) which isdefined for PUSCH transmission with grant and/or RRC connection and acell specific pathloss compensation factor (e.g. α). UE specific powerparameters, for example, can include a UE specific initial target PUSCHpower (e.g. Po_PUSCH_UE). According to an embodiment, a DMRS poweroffset parameter (P_DRMS_offset), which quantifies additional power tobe used for a DMRS, is sent 616 either via a cell specific broadcastchannel, a dedicated channel (e.g. RRC) or another predefined channel.The DMRS power offset parameter may be explicitly signaled or may beindicated by a ratio of the resource elements used for the DMRS comparedto the resource elements used for the PUSCH, for example in one PRB. TheUE 620 transmits 618 a PUSCH, for example at a power level based on:

${P_{{PUSCH},c}\left( {i,j} \right)} = {\min\begin{Bmatrix}{{P_{{CMAX},c}(i)},} \\{{10{\log_{10}\left( {M_{{PUSCH},c}(i)} \right)}} + {P_{{O\;\_\;{PUSCH}},c}(j)} + {{\alpha_{c}(j)} \cdot {PL}_{c}} + {\Delta_{{TF},c}(i)} + {f_{c}(i)}}\end{Bmatrix}}$where the second entry can be written more generally as,P _(PUSCH)(i,j)=10 log₁₀(M _(PUSCH))+P _(O_PUSCH) +α·PL+Δ _(TF)(i)+f(i)where,______ P _(O_PUSCH)(1)=P _(O_NOMINAL_PUSCH) +P _(O_UE_PUSCH)______ P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH_SPS) +P_(O_UE_PUSCH_SPS ______) P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH) +P_(O_UE_PUSCH)______ P _(O_PUSCH)(3)=P _(O_PRE)+Δ_(PREAMBLE_Msg3)The UE 620 also transmits 619 a DMRS based on:

${P_{{DMRS},c}\left( {i,j} \right)} = {\min\begin{Bmatrix}{{P_{{CMAX},c}(i)},} \\\begin{matrix}{{10{\log_{10}\left( {M_{{PUSCH},c}(i)} \right)}} + {P_{{O\;\_\;{PUSCH}},c}(j)} +} \\{{P_{{{DMRS}\;\_\;{offset}},c}(j)} + {{\alpha_{c}(j)} \cdot {PL}_{c}} + {\Delta_{{TF},c}(i)} + {f_{c}(i)}}\end{matrix}\end{Bmatrix}}$where the second entry can be written more generally as,P _(DMRS)(i)=10 log₁₀(M _(PUSCH))+P _(O_PUSCH) +P _(DMRS_offset) +α·PL+Δ_(TF)(i)+f(i)where,______ P _(O_PUSCH)(1)=P _(O_NOMINAL_PUSCH) +P _(O_UE_PUSCH)______ P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH_SPS) +P_(O_UE_PUSCH_SPS ______) P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH) +P_(O_UE_PUSCH)______ P _(O_PUSCH)(3)=P _(O_PRE)+Δ_(PREAMBLE_Msg3)

FIG. 6 also includes two examples of time-frequency resourcesillustrating how PUSCH data and DMRS may be scheduled for transmission.In each of the two examples, the vertical axis represents frequency, forexample sub-carriers, and the horizontal axis represents time, forexample symbols. A single sub-carrier of one symbol can be considered asingle resource element. Each example represents a time-frequencyresource of 7 symbols by 12 sub-carriers. In the first example, for all7 symbols, of the 12 sub-carriers, the first three symbols are for data,the fourth symbol is for DMRS and the last three symbols are for data.The first example illustrates time divisional multiplexing (TDM) betweenthe data and DMRS. In the second example, for 7 symbols, of the 12sub-carriers, the first three symbols are for data, the fourth symbol isfor DMRS and blank resource elements not used for DMRS can be used byother UEs and the last three symbols are for data. The second exampleillustrates TDM between the data and DMRS and frequency divisionmultiplexing (FDM) between the DMRS and other black resource elements.

In another embodiment, as will be explained in the context of FIGS. 7A,7B and 7C the NR system of FIGS. 2-5 can be used to facilitate separatepower control for separate PUSCHs. Specifically, as shown in FIG. 7A,one or more transmit/receive points (only one 710 is shown) may transmit712 one or more cell specific parameters such as initial target power(e.g. including first cell specific initial target PUSCH power_(Po_PUSCH_nominal)) and/or power offset and/or delta power parametersand/or a cell specific pathloss compensation factor (e.g. α) to a UE720. Depending on the state of the UE 720, the TRP 710 may also transmit714 UE specific power parameters (e.g. including _(Po_PUSCH_UE)). Onceagain, these cell specific power parameters and UE specific powerparameters, can be sent 712,714 via a broadcast channel and a RRCrespectively, over a PDSCH for example. Next, as shown in FIG. 7A the UE720 transmits 716 PUSCH1, for example at an initial power level basedon:

${P_{{PUSCH},c}\left( {i,j} \right)} = {\min\begin{Bmatrix}{{P_{{CMAX},c}(i)},} \\{{10{\log_{10}\left( {M_{{PUSCH},c}(i)} \right)}} + {P_{{O\;\_\;{PUSCH}},c}(j)} + {{\alpha_{c}(j)} \cdot {PL}_{c}} + {\Delta_{{TF},c}(i)} + {f_{c}(i)}}\end{Bmatrix}}$where the second entry can be written more generally as,P _(PUSCH)(i,j)=10 log₁₀(M _(PUSCH))+P _(O_PUSCH) +α·PL+Δ _(TF)(i)+f(i)where,______ P _(O_PUSCH)(1)=P _(O_NOMINAL_PUSCH) +P _(O_UE_PUSCH)______ P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH_SPS) +P_(O_UE_PUSCH_SPS ______) P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH) +P_(O_UE_PUSCH)______ P _(O_PUSCH)(3)=P _(O_PRE)+Δ_(PREAMBLE_Msg3)The UE 720 also transmits 718 another PUSCH, PUSCH2, where the powerlevel for PUSCH2, is derived from:

${P_{{PUSCH},c}\left( {i,j} \right)} = {\min\begin{Bmatrix}{{P_{{CMAX},c}(i)},} \\{{10{\log_{10}\left( {M_{{PUSCH},c}(i)} \right)}} + {P_{{O\;\_\;{PUSCH}},c}(j)} + {{\alpha_{c}(j)} \cdot {PL}_{c}}}\end{Bmatrix}}$${P_{{PUSCH},c}\left( {i,j} \right)} = {\min\left\{ \begin{matrix}{P_{{CMAX},c}(i)} \\{{10{\log_{10}\left( {M_{{PUSCH},c}(i)} \right)}} + {P_{{O\;\_\;{PUSCH}},c}(j)} + {{\alpha_{c}(j)} \cdot {PL}_{c}}}\end{matrix} \right.}$Where the second entry can be written more generally as,P _(PUSCH)(i)=10 log₁₀(M _(PUSCH))+P _(O_PUSCH) +α·PLP _(PUSCH,c)(i,j)=10 log₁₀(M _(PUSCH,c)(i)+P_(o_PUSCH_second,c)(j)+α_(c)(j)·PL _(c)Where P_(o_PUSCH_second) for PUSCH2 is one or more of:P_(O_PUSCH_second)=P_(O_NOMINAL_PUSCH)P_(O_PUSCH_second)=P_(O_GF_PUSCH)P _(O_PUSCH_second) =P _(O_NOMINAL_PUSCH) +P _(O_GF_PUSCH_offset)P _(O_PUSCH_second) =P _(O_PRE)+Δ_(PREAMBLE_Msg3)P _(O_PUSCH_second) =P _(O_PRE) +P _(O_GF_PUSCH_offset)P _(O_PUSCH_second) =P _(O_PRE)+Δ_(PREAMBLE_Msg3) +P_(O_GF_PUSCH_offset)

According to an embodiment of the disclosure, the first cell specificinitial target PUSCH power parameter P_(O_NOMINAL_PUSCH) is received ona cell specific broadcast channel and is defined for PUSCH with grantscheduling and/or RRC configuration. According to an embodiment of thedisclosure the second cell specific initial target PUSCH power parameterP_(O_GF_PUSCH), which can be used for grant free communications, alsoknown as communication without grant, is received on a cell specificbroadcast channel and is defined for PUSCH without any RRC connection(e.g. IDLE state or RRC_INACTIVE state). According to another embodimentof the disclosure, the cell specific initial target PUSCH power offsetparameter P_(O_GF_PUSCH_offset) is received on a cell specific broadcastchannel and is defined for PUSCH without any RRC connection (e.g. IDLEstate or RRC_INACTIVE state). According to another embodiment of thedisclosure the cell specific initial target preamble power parameterP_(O_PRE) is received on a cell specific broadcast channel and isdefined for preamble. According to another embodiment of the disclosurethe cell specific initial target preamble power offset parameterΔ_(PREAMBLE_Msg3) is received on a cell specific broadcast channel andis defined for PUSCH with grant scheduling but without any RRCconnection (i.e. corresponding to RAR). More generally speaking, thesepower parameters include one or more of a first cell specific initialtarget PUSCH power parameter, a second cell specific initial targetPUSCH power parameter, a cell specific initial target PUSCH power offsetparameter, a cell specific initial target preamble power parameter, anda cell specific initial target preamble power offset parameter, each ofwhich may be sent over a cell specific broadcast channel. According toone embodiment PUSCH2 is sent after PUSCH1 and pursuant to a grant freetransmission.

As shown in FIG. 7B according to another optional embodiment, the UE 720re-transmits 719 PUSCH2 at a later time t2 with a power that is rampedup from an initial transmission 718 of PUSCH2 occurring at t1. Whendetermining the power for this re-transmission 719, a cell specificPUSCH power delta parameter Δ_(GF), which sets out additional power tobe used for PUSCH re-transmissions that is distinct from a preambledelta parameter, is received on a cell specific broadcast channel duringtransmission 712 and is used for retransmission of PUSCH without RRCconnection (e.g. IDLE state or RRC_INACTIVE state). That being said, thecell specific PUSCH power delta parameter can be the same or a differentvalue from the cell specific preamble power delta parameter Δ_(Preamble)which is defined for retransmission of the preamble. In one embodiment,for an Nth re-transmission of PUSCH2, the initial target PUSCH power forPUSCH2 is derived as:P _(O_PUSCH_second, ReTx) =P _(O_PUSCH_second) +N×Δ _(GF) ; N≥0wherein N=0 means initial transmission of PUSCH2. Alternatively, ramp uppower may be defined by:P _(O_PUSCH_second, ReTx) =P _(O_PUSCH_second)+N×(Δ_(GF_offset)+Δ_(Preamble)); N≥0

Also shown in FIG. 7C, according to another optional embodiment, whendetermining the initial target PUSCH power for transmission 721 ofPUSCH2, a transmission format offset parameter P_(O_GF_TFOffset) (i.e._(Po_GF-TFOffset)) is used. This offset parameter may be based on atleast one of TBS level and/or MCS, selected based on TBS level by theUE, and a mapping table between P_(O_GF_TFOffset) and MCS level. Anexample table could be as follows:

MCS or TBS level P₀ _(—) _(GF) _(—) _(TFOffset) (dBS) 0 0 1 A 2 B

In another embodiment, as will be explained in the context of FIG. 8 theNR system of FIGS. 2-5 can be used to facilitate separate power controlfor separate PUSCHs transmitted on different resources (e.g.transmission beams; transmission beam pair links; panels; QCL groups;antenna ports; and transmission layers), in another optional way. Aresource can be regarded as a spatial resource which is used for PUSCHtransmission. Specifically, as shown in FIG. 8, one or moretransmit/receive points (only one 810 is shown) may transmit 812 one ormore cell specific power parameters (e.g. in a cell specific broadcastchannel) and may also transmit 814 one or more UE specific powerparameters (e.g. in a RRC) and that are received by UE 820. The cellspecific power parameters, for example, may include first cell specificinitial target PUSCH power parameter (e.g. P_(o_PUSCH_nominal)) and acell specific pathloss compensation factor (e.g. α). The UE specificpower parameters may include P_(o_UE_PUSCH). In addition to these powerparameters which can be received by the UE 820 from the network side,one power parameter pathloss can be estimated by the UE 820 based on oneor more DL RS configurations. Each DL RS configuration at least includesthe DL RS type definition (e.g. synchronization signal (SS) block,channel state information reference signal (CSI-RS) for DL mobilitymeasurement, CSI-RS for DL beam management measurement) for referencesignal received power (RSRP) measurement, and DL RS transmission power.One SS block includes at least one of DL synchronization channel, DMRSfor PBCH. These cell specific parameters, UE specific parameters and oneestimated pathloss can be arranged as a first parameter set which arecommon for multiple separate PUSCHs (e.g. PUSCH1 and PUSCH2) transmittedon different resources, such as different spatial resources associatedwith different resource indices. In the case of the first PUSCH type,scheduled with a dynamic grant (GRANT), the first cell specific initialtarget PUSCH power parameter (e.g. P_(o_PUSCH_nominal)) can be commonfor different PUSCH with different resource index. In the case of thesecond PUSCH type, semi-persistently scheduled with a dynamic grant(SPS), the UE specific power parameter P_(o_PUSCH_UE) can be common fordifferent PUSCH with different resource indices. In the case of thethird PUSCH type, the random access response grant (MSG3), one estimatedpathloss can be common for different PUSCH with different resourceindices. As shown in FIG. 8, the network side also transmits 815 one ormore respective PUSCH specific power parameters for multiple PUSCHchannels (e.g. PUSCH1 and PUSCH2). These PUSCH specific power parameterscan include one or more of the following: PUSCH specific initial targetPUSCH power (i.e. a P_(o_UE_PUSCH) parameter that is now specific to aparticular PUSCH instead of the UE as a whole) which can be configuredwith RRC separately for each PUSCH or using an offset for one PUSCHrelative to another; and PUSCH specific close-loop factors based on TPCf(i) and/or transmission format TF(i) based on downlink controlinformation (DCI) indication. In addition to these respective PUSCHspecific power parameters which can be received by the UE 820 from thenetwork side, respective PUSCH specific pathloss can be estimated by theUE 820 based on one or more DL RS configurations. Each DL RSconfiguration at least includes the DL RS type definition (e.g. SSblock, CSI-RS for DL mobility measurement, CSI-RS for DL beam managementmeasurement) for RSRP measurement, DL RS transmission power and theassociated PUSCH specific resource index. Based on DL RS configurationsassociated with a specific resource index, the UE 820 can estimate PUSCHspecific pathloss. The UE 820 then sends 816, 818 PUSCH1 and PUSCH2 witha respective power that is a function of one or more of the cellspecific power parameters, the UE specific power parameters, and therespective PUSCH specific power parameters. Specifically, the respectivePUSCH specific power parameters are used in place of cell specific powerparameters and UE specific power parameters, for example using thefollowing:

  PUSCH 1 ${P_{{PUSCH},c}\left( {i,j} \right)} = {\min\begin{Bmatrix}{{P_{{CMAX},c}(i)},} \\{{10{\log_{10}\left( {M_{{PUSCH},c}(i)} \right)}} + {P_{{O\;\_\;{PUSCH}},c}(j)} + {{\alpha_{c}(j)} \cdot {PL}_{c}} + {\Delta_{{TF},c}(i)} + {f_{c}(i)}}\end{Bmatrix}}$   PUSCH 2${P_{{PUSCH},c}\left( {i,j} \right)} = {\min\begin{Bmatrix}{{P_{{CMAX},c}(i)},} \\{{10{\log_{10}\left( {M_{{PUSCH},c}(i)} \right)}} + {P_{{O\;\_\;{PUSCH}},c}(j)} + {{\alpha_{c}(j)} \cdot {PL}_{c}} + {\Delta_{{TF},c}(i)} + {f_{c}(i)}}\end{Bmatrix}}$where:______ P _(O_PUSCH)(1)=P _(O_NOMINAL_PUSCH) +P _(O_UE_PUSCH)______ P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH_SPS) +P_(O_UE_PUSCH_SPS ______) P _(O_PUSCH)(2)=P _(O_NOMINAL_PUSCH) +P_(O_UE_PUSCH)______ P _(O_PUSCH)(3)=P _(O_PRE)+Δ_(PREAMBLE_Msg3)

Generally, for PUSCH power control, the UE can be configured withmultiple J (j=0, 1, . . . J−1) UE-specific P_(o_UE_PUSCH) and onecell-specific P_(o_nominal), K (k=0, 1, . . . K−1) pathloss withspecific RS resource configuration, N(=2) close-loop TPC f(l) (l=0,N−1)and N_(SRS) SRS resource indicator (SRI) configurations. For onespecific PUSCH with specific {j,k,l} values, the UE can determine thespecific j/k/l values based on a mapping between the SRI to J, the SRIto K and the SRI to N (as l is dependent upon N). For specific PUSCHwith specific SRI, j can be different from other specific PUSCH orcommon to other specific PUSCH, k can be different other specific PUSCHor common other specific PUSCH and l can be different other specificPUSCH or common other specific PUSCH.

For example:P _(PUSCH)(i)=10 log₁₀(M _(PUSCH))+P _(O_PUSCH) +α·PL+Δ _(TF)(i)+f(i)can be replaced with UE specific and PUSCH specific transmission poweras:P _(PUSCH(m))(i)=10 log₁₀(M _(PUSCH(m)))+P _(O_PUSCH) +α·PL+Δ_(TF(m))(i)+f _((m))(i)wherein only close-loop factors based on TPC f_((m))(i) and/ortransmission format Δ_(TF(m))(i) are PUSCH specific based on specific DLassignment wherein m is spatial resource index orP _(PUSCH(m))(i)=10 log₁₀(M _(PUSCH(m)))+P _(O_PUSCH(m)) +α·PL+Δ_(TF(m))(i)+f _((m))(i)wherein P_(O_PUSCH(m))=P_(O_PUSCH_nominal)+P_(O_PUSCH_UE(m)) i.e. PUSCHspecific initial target power and common P_(o_PUSCCH_nominal), isadditionally used.orP _(PUSCH(m))(i)=10 log₁₀(M _(PUSCH(m)))+P _(O_PUSCH(m)) +α·PL_((m))+Δ_(TF(m))(i)+f _((m))(i)wherein PUSCH specific PL could be additionally used.

In a NR system, RSRP(s) can be measured from the IDLE mode RS. One RSRPvalue is measured from the IDLE mode RS per SS block. The UE may measureone or more RSRP value from multiple SS blocks in an SS burst set andthe measured values are referred to as “SS-block-RSRP”. Consequently,for the high frequency transmission scenarios with multiple Tx/Rx beamsat the network side and multiple Tx/Rx beams at the UE side, the UE mayhave multiple pathloss estimation based on multiple SS blocks and/orCSI-RS which is also configured for the mobility measurement during RRCconnective state. In addition, Tx/Rx reciprocity at the network sideand/or UE side, may impact the downlink pathloss measurement which willbe used for the power control for the uplink channel/signal transmission(e.g. physical random access channel (PRACH) and/or PUSCH, and/or PUCCHand reference signals).

In another embodiment, as will be explained in the context of FIG. 9,the NR system of FIGS. 2-5 can be used for UL power control incircumstances when a UE 920 has transmit/receive beam reciprocity (wherethere is an association or relationship between transmit beams andreceive beams), and when a UE 930 does not. As shown in FIG. 9, one ormore synchronization and/or reference signals 912, 914 (i.e. SS block)associated with one or more transmit beams of one or moretransmit/receive points (only one 910 shown) can be sent to a UE 920,930. As shown in FIG. 9, in the situation where the UE 920 does havebeam reciprocity between a UE transmit beam and a UE receive beam, theUE 920 transmits 916 a channel and/or signal (e.g. an SRS_1) using afirst beam (e.g. Tx Beam (1)) using a power control process involving apathloss value derived from at least one RSRP associated with anassociated receive beam (PL associated with Rx_Beam_1) as the firsttransmit beam, to transmit 916 the transmission at a given power level(Power of SRS_1). An associated receive beam can be a receive beamhaving the same index as the transmit beam. Alternatively, as is alsoshown in FIG. 9, in the situation where a UE 930 does not have beamreciprocity between a UE transmit beam and a UE receive beam, the UEtransmits 918 a channel and/or signal (e.g. an SRS_2) using the firstbeam (Tx Beam (1)) and using a power control process involving anaverage pathloss value derived from at least one RSRP associated with aset of receive beams (e.g. Rx Beam (3) and Rx Beam (4)), to transmit 918the transmission at a given power level (Power of SRS_2).

In another embodiment, as will be explained in the context of FIG. 10,the NR system of FIGS. 2-5 can be used for UL power control incircumstances when a network side has transmit/receive beam reciprocity,and when a network side does not have transmit/receive beam reciprocity.As shown in FIG. 10, in the situation where the network side, forexample a transmit/receive point 1010 has beam reciprocity between oneor more transmit beams and a receive beam, the UE 1020 transmits uplinkchannel and/or signal (e.g. a PRACH_1 transmission) using a powercontrol process involving a pathloss value derived from at least oneRSRP associated with one SS block 1012, 1014 and/or network side beamindex to transmit 1018 the UL channel and/or signal at a given powerlevel (Power of PRACH_1). An SS block 1012, 1014 can include one or moresynchronization signals and system information (e.g. in a physicalbroadcast channel). Alternatively, as is also shown in FIG. 10, in thesituation where a network side, i.e. TRP 1010, does not have beamreciprocity between a transmit beam and a receive beam, the UE 1020transmits (e.g. a PRACH_2 transmission) using a power control processinvolving a pathloss value derived from multiple RSRP(s) associated withmore than one SS block 1012, 1014 and/or network side transmission beamindex, to transmit 1019 the transmission at a given power level (Powerof PRACH_2). Moreover at least one indication for transmit/receive beamreciprocity at the network side is provided to the UE 1020, for example,via a broadcasting channel.

FIGS. 11A and 11B illustrate examples of network side and UE sidetransmission and receiving for multiple beam communication. FIG. 11Aillustrates an example with three transmission beams 1, 2, 3 on thenetwork side and two receive beams 1, 2 on the UE side. FIG. 11Billustrates an example with three receive beams 1, 2, 3 on the networkside and two transmit beams 1, 2 on the UE side. With respect to beamreciprocity, the UE can measure the reference signal received power(RSRP) based on beam pair links 11, 21, 31, 12, 22 and 32. If there isreciprocity both @ UE side and @Network side, if Tx beam 1 @ UE and Rxbeam 2 @ Network side used, then only RSRP of link 11 is used to derivePL. If there is reciprocity @ UE side, but not @Network side, if Tx beam1 @ UE side and any Rx beam @ Network side is used, then 3 RSRP of link11, 21, 31 are used to derive PL (average). If there is no reciprocity @UE side and Network side, if any Tx beam @ UE side and any Rx beam @Network side is used, then 3×2 RSRP of link 11, 21, 31, 12, 22, 32 areused to derive PL (average). The UE can measure RSRP based on beam pairlink 11, 21, 31, 12, 22, 32

FIG. 12 illustrates a block diagram representation of a NRtransmit/receive point in accordance with an embodiment of the presentdisclosure. A high-level description of a transmit/receive point 1102that can be used in the NR system described above is illustrated. Thetransmit/receive point 1102 generally includes a control system 1106, abaseband processor 1108, memory 1118, transmit circuitry 1110, receivecircuitry 1112, multiple antennas 1114, and interfaces 1116 which caninclude network interfaces including an X2 interface. The memory 1118may be any type of memory capable of storing software and data. Thereceive circuitry 1112 receives radio frequency signals bearinginformation from one or more remote UE's as will be described inconjunction with FIG. 13. Preferably, a low noise amplifier and a filter(not shown) cooperate to amplify and remove broadband interference fromthe signal for processing. down-conversion and digitization circuitry(not shown) will then downconvert the filtered, received signal to anintermediate or baseband frequency signal, which is then digitized intoone or more digital streams.

The baseband processor 1108 processes the digitized received signal toextract the information or data bits conveyed in the received signal.This processing typically comprises demodulation, decoding, and errorcorrection operations. As such, the baseband processor 1108 is generallyimplemented in one or more DSPs or application-specific integratedcircuits (ASICs). The received information is then sent to an associatednetwork via the network interface 1116 or transmitted to another mobileterminal 1104 serviced by the base station 1102. Amongst other thingsbaseband processor 1108 can perform channel estimation as describeabove.

On the transmit side, the baseband processor 1108 receives digitizeddata, which may represent voice, data, or control information, from thenetwork interface 1116 under the control of the control system 1106, andencodes the data for transmission. The encoded data is output to thetransmit circuitry 1110, where it is modulated by a carrier signalhaving a desired transmit frequency or frequencies. A power amplifier(not shown) will amplify the modulated carrier signal to a levelappropriate for transmission, and deliver the modulated carrier signalto the antennas 1114 through a matching network (not shown). Modulationand processing details are described in greater detail below. In oneembodiment of the present disclosure, the base station 1102 transmitssignals using both antennas 1114, but receives signals using a singleantenna 1114.

With respect to the central access units describe earlier, a similararchitecture to that for a transmit/receive point in FIG. 12 could beused but with different interfaces and transmit/receive circuitry. Forexample, the transmit/receive circuitry may be for optical, DSL or anyother communication scheme. If collocated with a transmit/receive point,a central access unit could reuse the baseband processor and othercomponents of the transmit/receive point as necessary (e.g. interfacesfor communicating with other transmit/receive points).

FIG. 13 illustrates a block diagram representation of a NR UE inaccordance with an embodiment of the present disclosure. A high-leveldescription of the components of UE 1202 is shown. Similarly, to thetransmit/receive point 1102, the UE 1202 will include a control system1218, a baseband processor 1220, memory 1222, transmit circuitry 1222,receive circuitry 1224, multiple antennas 1226, and user interfacecircuitry 1228. The receive circuitry 1224 receives radio frequencysignals bearing information from one or more base stations 1202.Preferably, a low noise amplifier and a filter (not shown) cooperate toamplify and remove broadband interference from the signal forprocessing. Down conversion and digitization circuitry (not shown) willthen down convert the filtered, received signal to an intermediate orbaseband frequency signal, which is then digitized into one or moredigital streams.

The baseband processor 1220 processes the digitized received signal toextract the information or data bits conveyed in the received signal.This processing typically comprises demodulation, decoding, and errorcorrection operations, as will be discussed in greater detail below. Thebaseband processor 1220 is generally implemented in one or more DSP,ASIC, or both.

For transmission, the baseband processor 1220 receives digitized data,which may represent voice, data, or control information, from thecontrol system 1218 or the interface circuitry 1228, which it encodesfor transmission. The encoded data is output to the transmit circuitry1222, where it is used by a modulator to modulate a carrier signal thatis at a desired transmit frequency or frequencies. A power amplifier(not shown) will amplify the modulated carrier signal to a levelappropriate for transmission, and deliver the modulated carrier signalto the antennas 1226 through a matching network (not shown). The UE 1204may receive signals using both antennas 1226, but transmits signalsusing a single antenna 1226. Various modulation and processingtechniques available to those skilled in the art are applicable. Amongstother things, baseband processor 1220 can generate SRSs as describedabove. Specifically, baseband processor 1220 can generate SRSs based onconfiguration information received from the network.

In OFDM modulation, the transmission band is divided into multiple,orthogonal carrier waves. Each carrier wave is modulated according tothe digital data to be transmitted. Because OFDM divides thetransmission band into multiple carriers, the bandwidth per carrierdecreases and the modulation time per carrier increases. Since themultiple carriers are transmitted in parallel, the transmission rate forthe digital data, or symbols, on any given carrier is lower than when asingle carrier is used.

OFDM modulation may require the performance of an Inverse DiscreteFourier Transform (IDFT) on the information to be transmitted. Fordemodulation, the performance of a Discrete Fourier Transform (DFT) onthe received signal is required to recover the transmitted information.In practice, the IDFT and DFT may be provided by digital signalprocessing carrying out an Inverse Fast Fourier Transform (IFFT) andFast Fourier Transform (FFT), respectively. Accordingly, thecharacterizing feature of OFDM modulation is that orthogonal carrierwaves are generated for multiple bands within a transmission channel.The modulated signals are digital signals having a relatively lowtransmission rate and capable of staying within their respective bands.The individual carrier waves are not modulated directly by the digitalsignals. Instead, all carrier waves are modulated at once by IFFTprocessing.

Single Carrier FDMA (SC-FDMA) modulation differs from OFDM modulation inthat SC-FDMA uses a DFT block before mapping symbols to sub-carriers andthat it uses a parallel-to-serial unit after the IFDT block. OtherwiseSC-FDMA modulation is otherwise similar to OFDM modulation.

OFDM is used for at least the downlink transmission from the basestations 1102 to the mobile terminals 1204. Each base station 1102 isequipped with n transmit antennas 1114, and each mobile terminal 1204 isequipped with m receive antennas 1226. Notably, the respective antennascan be used for reception and transmission using appropriate duplexersor switches and are so labeled only for clarity.

As may be used herein, the terms “substantially” and “approximately”provides an industry-accepted tolerance for its corresponding termand/or relativity between items. Such an industry-accepted toleranceranges from less than one percent to fifty percent and corresponds to,but is not limited to, component values, integrated circuit processvariations, temperature variations, rise and fall times, and/or thermalnoise. Such relativity between items ranges from a difference of a fewpercent to magnitude differences. As may also be used herein, theterm(s) “configured to,” “operably coupled to,” “coupled to,” and/or“coupling” includes direct coupling between items and/or indirectcoupling between items via an intervening item (e.g., an item includes,but is not limited to, a component, an element, a circuit, and/or amodule) where, for an example of indirect coupling, the intervening itemdoes not modify the information of a signal but may adjust its currentlevel, voltage level, and/or power level. As may further be used herein,inferred coupling (i.e., where one element is coupled to another elementby inference) includes direct and indirect coupling between two items inthe same manner as “coupled to”. As may even further be used herein, theterm “configured to,” “operable to,” “coupled to,” or “operably coupledto” indicates that an item includes one or more of power connections,input(s), output(s), etc., to perform, when activated, one or more itscorresponding functions and may further include inferred coupling to oneor more other items. As may still further be used herein, the term“associated with,” includes direct and/or indirect coupling of separateitems and/or one item being embedded within another item.

As may be used herein, the term “compares favorably” or equivalent,indicates that a comparison between two or more items, signals, etc.,provides a desired relationship. For example, when the desiredrelationship is that signal 1 has a greater magnitude than signal 2, afavorable comparison may be achieved when the magnitude of signal 1 isgreater than that of signal 2 or when the magnitude of signal 2 is lessthan that of signal 1.

As may also be used herein, the terms “processing module,” “processingcircuit,” “processor,” “baseband processor,” and/or “processing unit” ortheir equivalents may be a single processing device or a plurality ofprocessing devices. Such a processing device may be a microprocessor,micro-controller, digital signal processor, microcomputer, centralprocessing unit, field programmable gate array, programmable logicdevice, state machine, logic circuitry, analog circuitry, digitalcircuitry, and/or any device that manipulates signals (analog and/ordigital) based on hard coding of the circuitry and/or operationalinstructions. The processing module, module, processing circuit, and/orprocessing unit may be, or further include, memory and/or an integratedmemory element, which may be a single memory device, a plurality ofmemory devices, and/or embedded circuitry of another processing module,module, processing circuit, and/or processing unit. Such a memory devicemay be a read-only memory, random access memory, volatile memory,non-volatile memory, static memory, dynamic memory, flash memory, cachememory, and/or any device that stores digital information. Note that ifthe processing module, module, processing circuit, and/or processingunit includes more than one processing device, the processing devicesmay be centrally located (e.g., directly coupled together via a wiredand/or wireless bus structure) or may be distributedly located (e.g.,cloud computing via indirect coupling via a local area network and/or awide area network). Further note that if the processing module, module,processing circuit, and/or processing unit implements one or more of itsfunctions via a state machine, analog circuitry, digital circuitry,and/or logic circuitry, the memory and/or memory element storing thecorresponding operational instructions may be embedded within, orexternal to, the circuitry comprising the state machine, analogcircuitry, digital circuitry, and/or logic circuitry. Still further notethat, the memory element may store, and the processing module, module,processing circuit, and/or processing unit executes, hard coded and/oroperational instructions corresponding to at least some of the stepsand/or functions illustrated in one or more of the Figures. Such amemory device or memory element can be included in an article ofmanufacture.

One or more embodiments of an invention have been described above withthe aid of method steps illustrating the performance of specifiedfunctions and relationships thereof. The boundaries and sequence ofthese functional building blocks and method steps have been arbitrarilydefined herein for convenience of description. Alternate boundaries andsequences can be defined so long as the specified functions andrelationships are appropriately performed. Any such alternate boundariesor sequences are thus within the scope and spirit of the claims.Further, the boundaries of these functional building blocks have beenarbitrarily defined for convenience of description. Alternate boundariescould be defined as long as the certain significant functions areappropriately performed. Similarly, flow diagram blocks may also havebeen arbitrarily defined herein to illustrate certain significantfunctionality. To the extent used, the flow diagram block boundaries andsequence could have been defined otherwise and still perform the certainsignificant functionality. Such alternate definitions of both functionalbuilding blocks and flow diagram blocks and sequences are thus withinthe scope and spirit of the claimed invention. One of average skill inthe art will also recognize that the functional building blocks, andother illustrative blocks, modules and components herein, can beimplemented as illustrated or by discrete components, applicationspecific integrated circuits, processing circuitries, processorsexecuting appropriate software and the like or any combination thereof.

The one or more embodiments are used herein to illustrate one or moreaspects, one or more features, one or more concepts, and/or one or moreexamples of the disclosure. A physical embodiment of an apparatus, anarticle of manufacture, a machine, and/or of a process may include oneor more of the aspects, features, concepts, examples, etc. describedwith reference to one or more of the embodiments discussed herein.Further, from figure to figure, the embodiments may incorporate the sameor similarly named functions, steps, modules, etc. that may use the sameor different reference numbers and, as such, the functions, steps,modules, etc. may be the same or similar functions, steps, modules, etc.or different ones.

Unless specifically stated to the contra, signals to, from, and/orbetween elements in a figure of any of the figures presented herein maybe analog or digital, continuous time or discrete time, and single-endedor differential. For instance, if a signal path is shown as asingle-ended path, it also represents a differential signal path.Similarly, if a signal path is shown as a differential path, it alsorepresents a single-ended signal path. While one or more particulararchitectures are described herein, other architectures can likewise beimplemented that use one or more data buses not expressly shown, directconnectivity between elements, and/or indirect coupling between otherelements as recognized by one of average skill in the art.

According to a first example, there is provided a method comprising:determining a first initial target power level for transmitting aphysical uplink shared channel; transmitting the physical uplink sharedchannel at the first initial target power level; determining a secondinitial target power level for transmitting a demodulation referencesignal based on the first initial target power level and an offsetparameter; and transmitting the demodulation reference signal at thesecond initial target power level; and wherein the demodulationreference signal is associated with the physical uplink shared channel.

In some embodiments of the first example, the physical uplink sharedchannel is scheduled with a dynamic downlink grant.

In some embodiments of the first example, the physical uplink sharedchannel is semi-persistently scheduled.

In some embodiments of the first example, the physical uplink sharedchannel is corresponding to a random access response.

In some embodiments of the first example, the physical uplink sharedchannel is transmitted pursuant to a grant free communication.

In some embodiments of the first example, the demodulation referencesignal is scheduled with a dynamic downlink grant.

In some embodiments of the first example, the demodulation referencesignal is semi-persistently scheduled.

In some embodiments of the first example, the demodulation referencesignal is corresponding to a random access response.

In some embodiments of the first example, the demodulation referencesignal is transmitted pursuant to a grant free communication.

In some embodiments of the first example, the offset is received on oneof a broadcast channel, dedicated control channel or other predefinedchannel.

In some embodiments of the first example, the demodulation referencesignal uses a first number of resource elements and the physical uplinkshared channel uses a second number of resource elements the methodfurther comprising, deriving the offset parameter from the ratio of thefirst number of resource elements and the second number of resourceelements.

In some embodiments of the first example, the method further comprisesreceiving the offset parameter that has been explicitly signaled.

According to a second example, there is provided a method comprising:transmitting a first set of power parameters for provisioning a physicaluplink shared channel and a demodulation reference signal to be sentwith the physical uplink shared channel; transmitting a second poweroffset parameter for provisioning the demodulation reference signal; andreceiving the physical uplink shared channel and the demodulationreference signal.

In some embodiments of second example, the method further comprisesscheduling the physical uplink shared channel with a dynamic downlinkgrant.

In some embodiments of the second example, the method further comprisessemi-persistently scheduling the physical uplink shared channel.

In some embodiments of the second example, the physical uplink sharedchannel is received in response to a random access response.

In some embodiments of the second example, the method further comprisesthe physical uplink shared channel is received pursuant to a grant freecommunication.

In some embodiments of the second example, the method further comprisesscheduling the demodulation reference signal with a dynamic downlinkgrant.

In some embodiments of the second example, the method further comprisessemi-persistently scheduling the demodulation reference signal.

In some embodiments of the second example, the demodulation referencesignal is received in response to a random access response.

In some embodiments of the second example, the demodulation referencesignal is received pursuant to a grant free communication.

In some embodiments of second example, the offset is transmitted on oneof a broadcast channel, dedicated control channel or other predefinedchannel.

In some embodiments of the second example, the method further comprisesprovisioning the demodulation reference signal such that it uses a firstnumber of resource elements and provisioning the physical uplink sharedchannel such that is uses a second number of resource elements whereinthe first number is different from the second number.

According to a third example, there is provided a method comprising:determining a first initial target power level for transmitting a firstphysical uplink shared channel; transmitting the first physical uplinkshared channel at the first initial target power level; determining asecond initial target power level for transmitting a second physicaluplink shared channel; transmitting the second physical uplink sharedchannel at the second initial target power level; wherein the firstinitial power level for the first PUSCH is derived from at least a firstcell specific initial target PUSCH power parameter and at least one UEspecific initial target PUSCH power parameter; wherein the secondinitial power level for the second PUSCH is derived from at least one ormore of the following: the first cell specific initial target PUSCHpower parameter; a second cell specific initial target PUSCH powerparameter; the first cell specific initial target PUSCH parameter and acell specific initial target PUSCH power offset parameter; a cellspecific initial target preamble power parameter and the cell specificinitial target PUSCH power offset parameter; the cell specific initialtarget preamble power parameter and a cell specific initial targetpreamble power offset parameter; or the cell specific initial targetpreamble power parameter, the cell specific initial target preamblepower offset parameter and the cell specific initial target PUSCH poweroffset parameter; wherein the second cell specific initial target PUSCHpower parameter is different from the first cell specific initial targetPUSCH power parameter; and wherein the cell specific initial targetpower offset parameter is different from the cell specific initialtarget preamble power offset parameter.

In some embodiments of the third example, the first cell specificinitial target PUSCH power parameter is received on a cell specificbroadcast channel and is defined for PUSCH transmissions with grantscheduling and/or RRC connection.

In some embodiments of the third example, the second cell specificinitial target PUSCH power parameter is received on a cell specificbroadcast channel and is defined for PUSCH transmissions without any RRCconnection and grant scheduling.

In some embodiments of the third example, the cell specific initialtarget PUSCH power offset parameter is received on a cell specificbroadcast channel and is defined for PUSCH without any RRC connectionand grant scheduling.

In some embodiments of the third example, the cell specific initialtarget preamble power is received on a cell specific broadcast channeland is designed for a preamble.

In some embodiments of the third example, the cell specific initialtarget preamble power offset parameter is received on a cell specificbroadcast channel and is defined for PUSCH transmissions with grantscheduling but without any RRC connection.

In some embodiments of the third example, the method further comprisesdetermining a third target power level for transmitting the secondphysical uplink shared channel, wherein the third target power isderived from the second initial target power and a cell specific PUSCHpower delta parameter.

In some embodiments of the third example, the cell specific PUSCH powerdelta parameter is received on a cell specific broadcast channel and isdefined for retransmission of PUSCH without any RRC connection and grantscheduling.

In some embodiments of the third example, the method further comprises:determining a third target power level for transmitting the secondphysical uplink shared channel, wherein the third target power isderived from the second cell specific initial target PUSCH powerparameter, the cell specific initial target preamble power offsetparameter and a cell specific PUSCH power delta offset parameter.

In some embodiments of the third example, the second initial power levelis further derived from a transmission format compensation offsetparameter.

In some embodiments of the third example, there is a relationshipbetween the transmission format compensation offset parameter and one ormore of a modulation and coding set and a transport block size.

According to a fourth example, there is provided a method comprising:transmitting a first cell specific initial target PUSCH power parameter;transmitting at least one UE specific initial target PUSCH powerparameter; transmitting a cell specific initial target preamble powerparameter; transmitting a cell specific initial target preamble poweroffset parameter; transmitting one or more of: a second cell specificinitial target PUSCH power parameter a cell specific initial targetPUSCH power offset parameter; wherein the second cell specific initialtarget PUSCH power parameter is different from the first cell specificinitial target PUSCH power parameter; wherein the cell specific initialtarget power offset parameter is different from the cell specificinitial target preamble power offset parameter; receiving a first PUSCHprovisioned using at least the first cell specific initial target PUSCHpower parameter and the at least one UE specific initial target PUSCHpower parameter; and receiving a second PUSCH provisioned using at leastthe least one or more of: the first cell specific initial target PUSCHpower parameter; the second cell specific initial target PUSCH powerparameter; the first cell specific initial target PUSCH parameter andthe cell specific initial target PUSCH power offset parameter; the cellspecific initial target preamble power parameter and the cell specificinitial target PUSCH power offset parameter; the cell specific initialtarget preamble power parameter and the cell specific initial targetpreamble power offset parameter; or the cell specific initial targetpreamble power parameter, the cell specific initial target preamblepower offset parameter and the cell specific initial target PUSCH poweroffset parameter.

In some embodiments of the fourth example, the first cell specificinitial target PUSCH power parameter is transmitted on a cell specificbroadcast channel and is defined for PUSCH transmissions with grantscheduling and/or RRC connection.

In some embodiments of the fourth example, the second cell specificinitial target PUSCH power parameter is transmitted on a cell specificbroadcast channel and is defined for PUSCH transmissions without any RRCconnection and grant scheduling.

In some embodiments of the fourth example, the cell specific initialtarget PUSCH power offset parameter is transmitted on a cell specificbroadcast channel and is defined for PUSCH without any RRC connectionand grant scheduling.

In some embodiments of the fourth example, the cell specific initialtarget preamble power is transmitted on a cell specific broadcastchannel and is designed for a preamble.

In some embodiments of the fourth example, the cell specific initialtarget preamble power offset parameter is transmitted on a cell specificbroadcast channel and is defined for PUSCH transmissions with grantscheduling but without any RRC connection.

In some embodiments of the fourth, example the method further comprisestransmitting a cell specific PUSCH power delta parameter.

In some embodiments of the fourth example, the cell specific PUSCH powerdelta parameter is transmitted on a cell specific broadcast channel andis defined for retransmission of PUSCH without any RRC connection andgrant scheduling.

In some embodiments of the fourth example, the method further comprisesreceiving a third physical uplink shared channel provisioned using thesecond cell specific initial target PUSCH power parameter, the cellspecific initial target preamble power offset parameter and a cellspecific PUSCH power delta offset parameter.

In some embodiments of the fourth example, the method further comprisestransmitting a transmission format compensation offset parameter andreceiving the second physical uplink shared channel further provisionedusing the transmission format compensation offset parameter.

In some embodiments of the fourth example, there is a relationshipbetween the transmission format compensation offset parameter and one ormore of a modulation and coding set and a transport block size.

According to a fifth example, there is provided a method comprising:transmitting one or more cell specific power parameters for reception bya UE; transmitting one or more UE specific power parameters forreception by a UE; transmitting one or more power parameters specific toa first physical uplink shared channel; transmitting one or more powerparameters specific to a second physical uplink shared channel;receiving the first physical uplink shared channel on a first resourceprovisioned using the one or more physical uplink shared channel powerparameters specific to the first physical uplink shared channel; andreceiving the second physical uplink shared channel on a second resourceprovisioned using the one or more physical uplink shared channel powerparameters specific to the second physical uplink shared channel;wherein the first resource and the second resource are at least one of:respective transmission beams; respective transmission beam pair links;respective panels; respective QCL groups; respective antenna ports; orrespective transmission layers.

In some embodiments of the fifth example, the power parameters specificto the first physical uplink channel and the second power parametersspecific to the second physical uplink channel include one or more of arespective PUSCH specific pathloss parameter, a respective PUSCHspecific P_(o_UE_PUSCH) parameter, or one or more respective PUSCHspecific closed-loop factors.

In some embodiments of the fifth example, the one or more respectivePUSCH closed-loop factors can be based on one or more of transmit powercontrol or transmission format indications.

In some embodiments of the fifth example, the one or more cell specificpower parameters include one or more of P_(o_PUSCH_nominal) or a cellspecific path loss compensation factor.

In some embodiments of the fifth example, the power parameters specificto the first physical uplink channel and the power parameters specificto the second physical uplink channel are represented as offsets fromthe one or more cell specific power parameters or the one or more UEspecific power parameters.

According to a sixth example there is provided a method comprising:transmitting from a UE a first transmission in a first transmit beam ofthe UE in accordance with a power control process wherein a firstpathloss value used in the power control process is derived from a firstreceived power associated with a first receive beam of the UE associatedwith the first transmit beam of the UE when the UE has transmit/receivebeam reciprocity with respect to the first transmit beam of the UE andthe first receive beam of the UE; and transmitting from the UE a secondtransmission in a second transmit beam of the UE in accordance with thepower control process wherein a second pathloss value used in the powercontrol process is derived from second received powers associated a setof receive beams of the UE when the UE does not have thetransmit/receive beam reciprocity with respect to the second transmitbeam of the UE.

In some embodiments of the sixth example, the first transmission is afirst sounding reference signal and the second transmission is a secondsounding reference signal.

In some embodiments of the sixth example, the first transmit beam of theUE and the second transmit beam of the UE have the same index.

In some embodiments of the sixth example, the second pathloss value isderived from an average of the second receive powers.

In some embodiments of the sixth example, the first received power isassociated with a first network side beam.

In some embodiments of the sixth example the first received power isassociated with a first network side beam and a second received power isassociated with a second network side beam, and where the first pathlossvalue is further derived from the second received power.

According to a seventh example there is provided a method comprising:transmitting from a UE a first transmission in accordance with a powercontrol process wherein a first pathloss value used in the power controlprocess is derived from a first received power associated with one SSblock index when the UE has transmit/receive beam reciprocityinformation about first network side beams; and transmitting from the UEa second transmission in accordance with the power control processwherein a second pathloss value used in the second power control processis derived from second received powers associated with more than one SSblock index when the UE does not have transmit/receive beam reciprocityinformation about second network side beams.

In some embodiments of the seventh example, the first transmission is afirst PRACH transmission and the second transmission is a second PRACHtransmission.

While particular combinations of various functions and features of theone or more embodiments have been expressly described herein, othercombinations of these features and functions are likewise possible. Thepresent disclosure of an invention is not limited by the particularexamples disclosed herein and expressly incorporates these othercombinations.

What is claimed is:
 1. A method for uplink transmissions, comprising:acquiring, by a user equipment (UE), a power parameter specific to aphysical uplink shared channel (PUSCH); determining, by the UE, apathloss value for the PUSCH in accordance with a downlink referencesignal (DL RS) configuration, the DL RS configuration being associatedwith a resource index identifying an antenna port; deriving, by the UE,a transmission power for the PUSCH in accordance with the powerparameter and the pathloss value; and transmitting, by the UE, the PUSCHon the antenna port at the transmission power.
 2. The method of claim 1,wherein the DL RS configuration comprises a synchronization signal (SS)block configuration for reference signal received power (RSRP)measurement, the SS block configuration indicating a SS block comprisinga downlink synchronization signal, and a demodulation reference signal(DMRS) for a physical broadcast channel (PBCH).
 3. The method of claim1, wherein the DL RS configuration comprises a channel state informationreference signal (CSI-RS) for DL mobility measurement, or a CSI-RS fordownlink beam management measurement.
 4. The method of claim 1, whereinthe DL RS configuration comprises a DL RS transmission power, or a PUSCHspecific resource index.
 5. The method of claim 1, wherein the powerparameter includes at least one of: a pathloss parameter specific to thePUSCH, an initial target PUSCH power parameter specific to the PUSCH, ora closed-loop factor specific to the PUSCH.
 6. The method of claim 5,wherein the closed-loop factor is based on a transmit power controlcommand or a transmission format indication.
 7. The method of claim 1,wherein the power parameter comprises a common cell specific powerparameter or a UE specific power parameter.
 8. The method of claim 7,wherein the common cell specific power parameter includes a cellspecific initial target PUSCH power parameter.
 9. The method of claim 1,wherein the power parameter is represented as an offset from a commoncell specific power parameter or a UE specific power parameter.
 10. Themethod of claim 1, wherein the acquiring the power parameter comprises:receiving, by the UE, the power parameter from a base station through aradio resource control message.
 11. A device comprising: at least oneprocessor; a computer-readable medium, having stored thereoncomputer-executable instructions that, when executed by the at least oneprocessor cause the device to: acquire a power parameter specific to aphysical uplink shared channel (PUSCH); determine a pathloss value forthe PUSCH in accordance with a downlink reference signal (DL RS)configuration, the DL RS configuration being associated with a resourceindex identifying an antenna port; derive a transmission power for thePUSCH in accordance with the power parameter and the pathloss value; andtransmit the PUSCH on the antenna port at the transmission power. 12.The device of claim 11, wherein the DL RS configuration comprises asynchronization signal (SS) block configuration for reference signalreceived power (RSRP) measurement, the SS block configuration indicatinga SS block comprising a downlink synchronization signal, and ademodulation reference signal (DMRS) for a physical broadcast channel(PBCH).
 13. The device of claim 11, wherein the DL RS configurationcomprises a channel state information reference signal (CSI-RS) for DLmobility measurement, or a CSI-RS for downlink beam managementmeasurement.
 14. The device of claim 11, wherein the DL RS configurationcomprises a DL RS transmission power, or a PUSCH specific resourceindex.
 15. The device of claim 11, wherein the power parameter includesat least one of: a pathloss parameter specific to the PUSCH, an initialtarget PUSCH power parameter specific to the PUSCH, or a closed-loopfactor specific to the PUSCH.
 16. The device of claim 15, wherein theclosed-loop factor is based on a transmit power control command or atransmission format indication.
 17. The device of claim 11, wherein thepower parameter comprises a common cell specific power parameter or a UEspecific power parameter.
 18. The device of claim 17, wherein the commoncell specific power parameter includes a cell specific initial targetPUSCH power parameter.
 19. The device of claim 11, wherein the powerparameter is represented as an offset from a common cell specific powerparameter or a UE specific power parameter.
 20. The device of claim 11,wherein the computer-executable instructions that cause the device toacquire the power parameter comprise computer-executable instructionsthat, when executed by the at least one processor, cause the device toreceive the power parameter from a base station through a radio resourcecontrol message.